CN104100709A - Pump motor control system for automatic transmission and method thereof - Google Patents
Pump motor control system for automatic transmission and method thereof Download PDFInfo
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- CN104100709A CN104100709A CN201310695833.XA CN201310695833A CN104100709A CN 104100709 A CN104100709 A CN 104100709A CN 201310695833 A CN201310695833 A CN 201310695833A CN 104100709 A CN104100709 A CN 104100709A
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- Prior art keywords
- pressure
- pump motor
- hydraulic
- automatic transmission
- pump
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4008—Control of circuit pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses a pump motor control system for an automatic transmission and a method thereof. The pump motor control system provides for a low-pressure hydraulic pump and a high-pressure hydraulic pump on one shaft of a pump motor. The method includes detecting information including engine speed, a shift range selected, a rotation speed of the pump motor, and hydraulic pressure in a high-pressure part, controlling the rotation speed of the pump motor to be the same as the engine speed, when engine is turned on and the P range or the N range is selected by the shift lever, generating hydraulic pressure for operating a friction element in the high-pressure part by increasing the rotation speed of the pump motor, when the shift lever is moved to the D range or R range, and keeping the hydraulic pressure in the high-pressure part stable, by controlling the rotation speed of the pump motor in accordance with the hydraulic pressure at the high-pressure part.
Description
The cross reference of related application
The application requires the preference of the korean patent application No.10-2013-0035363 submitting on April 1st, 2013, and the full content of this application is incorporated into this all objects for quoting by this.
Technical field
The present invention relates to a kind of pump motor control system and method thereof for automatic transmission.More specifically, the present invention relates to a kind of pump motor control system for automatic transmission, its hydraulic pressure discharge pressure according to high-voltage section office in the fluid pressure supply system of automatic transmission that is equipped with two oil hydraulic pumps allows stable fuel oil supply by the rotational speed of pump motor being controlled to optimum level place, and for the pump motor controlling method of automatic transmission.
Background technique
Need to improve constantly the fuel efficiency of vehicle owing to increase in global oil price in the situation that, and under the waste gas supervision of each country, need the friendly type vehicle of development environment, therefore fuel-saving technology is developed in the effort that automobile making commercial city has been poured into oneself, to satisfy the demands.For automatic transmission, be that the power loss of unnecessary oil hydraulic pump is minimized for improving the most important thing of fuel efficiency.
Normally, startup that be connected and that follow motor with the live axle of motor keeps the mechanical-hydraulic pump of operation as the oil hydraulic pump of automatic transmission, but the operation of mechanical-hydraulic pump act as the load on motor, and cause lasting power loss, make it may cause the reduction of fuel efficiency.
Particularly, when motor is during at high RPM stages operating, the mechanical-hydraulic pump that is connected to the live axle of motor has been supplied too many fuel oil to the high-pressure section of the lubricated low-pressure section of needs and actuating friction element, makes power have unnecessary waste.
Recently, vehicle is equipped with and in the time that vehicle is stopped, stops motor and start with the ISG(idle stop & that improves fuel efficiency), and vehicle is equipped with after stopping under restart condition in addition for the electric oil hydraulic pump to automatic transmission sap pressure supply.
In addition, develop the structure not being connected with the live axle of motor to only thering is electric oil hydraulic pump and cause the automatic transmission supply fuel oil of the mechanical-hydraulic pump of fuel efficiency reduction by producing lasting power loss, desired is that automatic transmission will only be equipped with electric oil hydraulic pump in the future.
The electric oil hydraulic pump being driven by pump motor is made up of low-pressure hydraulic pump and high-pressure hydraulic pump, make (to be for example provided to low-pressure section in automatic transmission from the hydraulic pressure of low-pressure hydraulic pump, torque converter) also cooling to lubricate, simultaneously, be provided to the high-pressure section in automatic transmission from the hydraulic pressure of high-pressure hydraulic pump, so that can actuating friction element (close element (on-coming element) and from element (off-going element)).
Hydraulic control low-pressure hydraulic pump based in low voltage section office and the operation of high-pressure hydraulic pump, and only have some hydraulic pressure to be supplied the high pressure required as high-pressure section.
In this structure, for the hydraulic pressure for being applied to low-pressure section and high-pressure section, hydrostatic sensor is arranged on the discharge port of low-pressure hydraulic pump and the discharge port place of high-pressure hydraulic pump, and the hydraulic pressure of the rotational speed of motor based on being detected by hydrostatic sensor and being controlled.
But, because many hydrostatic sensors are used to control the rotational speed of motor, be therefore accompanied by the reduction of productivity and the increase of number of components, may increase manufacture cost.
In addition, because hydrostatic sensor only detects the pressure that whether reaches expectation, and do not detect the added flow in the passage of low-pressure section and high-pressure section, be therefore difficult to motor control at best rotational speed place.
The information that is disclosed in background parts of the present invention is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply that in any form this information structure has been the known prior art of persons skilled in the art.
Summary of the invention
All aspects of of the present invention have been devoted to provide a kind of pump motor control system and method for automatic transmission, it,, according to the hydraulic pressure discharge pressure of the high-voltage section office in the fluid pressure supply system that is equipped with the high-pressure hydraulic pump of the axle that is connected to a pump motor and the automatic transmission of low-pressure hydraulic pump, has advantages of by the rotational speed of pump motor is controlled to optimum level place the hydraulic pressure of stably supplying low-pressure section and high-pressure section.
In addition, low-pressure section by estimation in the automatic transmission fuel supply system with the structure that high-pressure and hydraulic and low-pressure hydraulic is connected to a pump motor axle and the necessary hydraulic pressure of high-voltage section office, the present invention makes the rotational speed of pump motor be subject to optiumum control by keeping.
One aspect of the present invention provides a kind of pump motor control system for automatic transmission, it can comprise: low-pressure hydraulic pump, high-pressure hydraulic pump, pump motor, pump motor rotary speed detector and controller for shifting, wherein, hydraulic pressure is supplied to the low-pressure section in described automatic transmission by described low-pressure hydraulic pump; Hydraulic pressure is supplied to the high-pressure section in described automatic transmission by described high-pressure hydraulic pump; Described low-pressure hydraulic pump and described high-pressure hydraulic pump are connected to an axle and driven pump by described pump motor; Described pump motor rotary speed detector detects the rotational speed of described pump motor; The operation of automatic transmission described in described controller for shifting control.
The rotational speed that described controller for shifting can be controlled described pump motor at P scope or N scope place is with identical with engine speed, in the time having selected D scope or R scope, produce hydraulic pressure in described high-voltage section office by the rotational speed that improves described pump motor, and according to the hydraulic pressure producing in described high-voltage section office, carry out stable hydraulic by the rotational speed of controlling described pump motor.
This system may further include the hydrostatic sensor in the hydraulic line that is arranged on described high-pressure section, and detects the hydraulic pressure producing in described high-voltage section office.Controller for shifting can be by using the mapping of setting according to the fuel oil temperature of described automatic transmission and durability to compensate the rotational speed of described pump motor.
Another aspect of the present invention provides a kind of pump motor control system for automatic transmission, it can comprise: pump motor, and described pump motor is by the described low-pressure hydraulic pump of the low-pressure section sap pressure supply in described automatic transmission and be connected on an axle and driven pump to the described high-pressure hydraulic pump of the high-pressure section sap pressure supply in described automatic transmission; Septum valve, described septum valve is controlled at the hydraulic pressure that described high-voltage section office produces; Low pressure modulating valve, described low pressure modulating valve is controlled at the hydraulic pressure that described low voltage section office produces; Controller for shifting, pump motor, described septum valve and described low pressure modulating valve described in described controller for shifting control; And pressure transducer, described pressure transducer is arranged in the passage of described high-pressure section, and detect the hydraulic pressure producing in described high-voltage section office, wherein said controller for shifting, according to the hydraulic pressure in described high-voltage section office being detected by described pressure transducer, makes the hydraulic pressure of described high-pressure section keep stable by controlling the rotational speed of described pump motor.
The rotational speed that described controller for shifting can be controlled described pump motor at P scope or N scope place is with identical with engine speed.Described controller for shifting can compensate according to the fuel oil temperature condition of described automatic transmission and durability the rotational speed of described pump motor.
Described septum valve can be controlled by the elastic force of the pilot pressure of solenoid valve and resilient member, and described septum valve can be controlled the hydraulic pressure of high-pressure channel.Described low pressure modulating valve can, according to the elastic force of resilient member and the hydraulic pressure of low-pressure channel at opposite side place that is applied to described low pressure modulating valve, be controlled the hydraulic pressure of low-pressure channel by recirculation hydraulic pressure.
It is a kind of for drive the pump motor controlling method of the automatic transmission of low-pressure hydraulic pump and high-pressure hydraulic pump together with an axle that each other side of the present invention provides.Described method can comprise: detect comprise engine speed, the information of the rotational speed of the shift range of being selected by shift level, described pump motor and the hydraulic pressure under high-pressure section; In the time that motor is opened and selects P scope or N scope by described shift level, control the rotational speed of described pump motor with identical with described engine speed; In the time that described shift level moves to D scope or R scope, in described high-pressure section, produce the hydraulic pressure for actuating friction element by the rotational speed that improves described pump motor; And according to the hydraulic pressure in described high-pressure section, make the hydraulic pressure in described high-pressure section keep stable by controlling the rotational speed of described pump motor.The rotational speed that produces the described pump motor of line pressure in described high-pressure section can be repaired according to fuel oil temperature condition and the durability of described automatic transmission.
Method and apparatus of the present invention has other characteristic and advantage, these characteristics and advantage will be apparent from the accompanying drawing that is incorporated herein and embodiment subsequently, or will in the accompanying drawing being incorporated herein and embodiment subsequently, state in detail, these the drawings and specific embodiments are jointly for explaining certain principles of the present invention.
Brief description of the drawings
Fig. 1 is the skeleton diagram exemplarily illustrating according to the pump motor control system for automatic transmission of the present invention.
Fig. 2 is according to the schematic diagram of the fluid pressure supply system of automatic transmission of the present invention.
Fig. 3 is the flow chart illustrating according to the process of the control pump motor for automatic transmission of the present invention.
Fig. 4 and Fig. 5 are the chart that shows that the rotational speed control of the pump motor relevant with durability according to temperature of the present invention and when the pump motor of controlling for automatic transmission is shone upon.
Embodiment
Now will be concrete with reference to each embodiment of the present invention, in the accompanying drawings with in following description the example of these embodiments is shown.Although the present invention combines and is described with exemplary, should understand, this specification is not intended to limit the invention to those exemplary.On the contrary, the present invention is intended to not only cover these exemplary, and covers various replacements, amendment, equivalents and other embodiment that can be included within the spirit and scope of the present invention that limited by claims.
Not shown with the incoherent part of description of the embodiment illustrating, so that illustrate clearly, and run through element like the similar reference character representation class of specification.For the convenience illustrating, this structure is optionally shown in the accompanying drawings, and the present invention is not limited to accompanying drawing.Using the first and second terms such as grade is the assemblies that have same names for distinguishing, and they are not limited to order.
Fig. 1 is schematically illustrated according to the skeleton diagram of the pump motor control system for automatic transmission of each embodiment of the present invention.With reference to Fig. 1, the present invention includes engine speed detector 11, shift range detector 12, hydraulic detector 13, pump motor rotary speed detector 14, controller for shifting 21 and pump motor 31.
Engine speed detector 11 detects at motor and form the present engine speed of the rotational speed of bent axle or the rotational speed of camshaft in the time moving, and the information of engine speed is provided to controller for shifting 21.
Shift range detector 12 detects the shift range of for example P, the R, N and the D that select by shift level, and will provide to controller for shifting 21 about the information of scope.Shift range detector 12 can be carried out by suppressing switch.
Hydraulic detector 13 as hydrostatic sensor detects the hydraulic pressure from high-pressure section, and will provide to controller for shifting 21 about the information of hydraulic pressure.Hydraulic detector 13 can only be arranged on high-voltage section office, and is not arranged on low voltage section office.
Pump motor rotary speed detector 14 detects the rotational speed that low-pressure hydraulic pump and high-pressure hydraulic pump is connected to an axle and drives their pump motor 31, and will provide to controller for shifting 21 about the information of rotational speed.
In the time that the shift range of being selected by shift level is P scope or N scope, be accompanied by opening of motor, controller for shifting 21 is controlled the rotational speed of pump motor 31 with identical with engine speed.Be controlled as identically with engine speed when being accompanied by the rotational speed of pump motor 31, when shift level moves to D scope, controller for shifting 21 produces line pressure by increasing the rotational speed of pump motor 31 in high-pressure section.
Therefore, can operate the friction element of the shift range for being attached to expectation.
In producing the line pressure of high-pressure section, controller for shifting 21 is determined the rotational speed of pump motor 31 according to the mapping of the temperature based on fuel oil and durability restriction, and the rotational speed of compensation pump motor 31.
Controller for shifting 21, according to the line pressure producing after hydraulic detector 13 detects the line pressure producing in high-pressure section, maintains under the optimum state the line pressure in high-pressure section by rotational speed and the modulating valve of controlling pump motor 31.
Be accompanied by response to the control signal from controller for shifting 21 and control rotational speed, pump motor 31 drives the low-pressure hydraulic pump and the high-pressure hydraulic pump that are connected to motor reel.
Fig. 2 is according to the schematic diagram of the fluid pressure supply system of the automatic transmission of each embodiment of the present invention.With reference to Fig. 2, the low-pressure section 104 that the fluid pressure supply system of automatic transmission is configured to make the hydraulic pressure that produces by low-pressure hydraulic pump 102 to be provided to comprise torque converter T/C with cooling and lubricated they, and the hydraulic pressure producing by high-pressure hydraulic pump 106 is provided to high-pressure section 108 with the operation friction element relevant to gear shift (close element and from element).
Be controlled in enough low level from the hydraulic pressure of low-pressure hydraulic pump 102, operating smoothly, cooling and lubricated torque converter T/C, and be controlled in sufficiently high level from the hydraulic pressure of high-pressure hydraulic pump 108, to operate in smoothly under gear shift multiple friction elements (close element and from element) of optionally operation.
Low-pressure hydraulic pump 102 and high-pressure hydraulic pump 106 are connected to the running shaft of pump motor 31, and drive by pump motor 31 under the control of controller for shifting 21.
Low-pressure hydraulic pump 102 sucks the fuel oil in fuel oil dish P by inlet passage 112, and is disposed to low-pressure channel 114, and is controlled and stablize and be supplied to low-pressure section 104 through low pressure modulating valve 110 from the hydraulic pressure of Low Temperature Liquid press pump 102.
In the elastic force by resilient member 116 be applied to hydraulic pressure in the low-pressure channel 114 of opposite side and the controlled while, some hydraulic pressure that low pressure modulating valve 110 is supplied via low-pressure channel 114 by recirculation via the first recirculation line 118 are controlled the hydraulic pressure of low-pressure section 104.
High-pressure hydraulic pump 106 improves and discharges supply from the hydraulic pressure of low-pressure hydraulic pump 102, and high-pressure section 108 is controlled and be supplied to hydraulic pressure in high-pressure channel 120 by septum valve 122.
In the pilot pressure of the solenoid valve SOL by being provided to a side and the elastic force of resilient member 124 and be provided to controlled while of the hydraulic pressure in high-pressure channel 120 of opposite side, septum valve 120 is by will being recycled to fuel oil dish P from high-pressure channel 120 some hydraulic pressure and being controlled at the hydraulic pressure at high-pressure section 108 places via the second recirculation line 126.
Hydraulic pressure from high-pressure hydraulic pump 106 detects by the hydrostatic sensor S that is arranged on the predetermined position in high-pressure channel 120, and is then supplied to controller for shifting 21, and the rotational speed of pump motor 31 can be controlled.
Discussion is there is to the operation of the present invention of above-mentioned structure below.
Fig. 3 is the flow chart illustrating according to the process of the control pump motor for automatic transmission of each embodiment of the present invention.With reference to Fig. 3, when application vehicle with automatic transmission of the present invention is while being driven, controller for shifting 21 detect comprise whether motor is opened, the conventional activation bit (S101) of the rotational speed of engine speed, the shift range of being selected by shift level, hydraulic pressure in high-pressure channel 120 and pump motor 31.
Controller for shifting 21 determines by analyze the information detecting in step S101 whether motor has been opened and whether shift level has selected P scope or N scope (S102).When determine that motor has been opened and has selected P scope or N scope in step S102 time, controller for shifting 21 is controlled the rotational speed of pump motor 31 with identical with engine speed (S103).
The rotational speed that is accompanied by pump motor 31 is controlled to identical with engine speed, and controller for shifting 21 detects shift level and whether moves to D scope or R scope (S104).When the arrival D scope that occurs or R scope mobile detected in S104 time, controller for shifting 21 is by increasing hydraulic pressure from high-pressure hydraulic pump 106 at the interior generation line pressure of high-pressure section 108 (S105).
Therefore, can operate smoothly friction element for connecting shift range (close element and from element).
By improving the rotational speed of pump motor 31 in the interior generation line pressure of high-pressure section 108, the rotational speed that the rotational speed of pump motor 31 is fed detection (S106) and pump motor 31 is determined (S107) by the mapping of setting according to fuel oil temperature and durability, thus the rotational speed (S108) of compensation pump motor 31.
The compensation of the rotational speed of pump motor 31 is controlled, and for example, under cryogenic conditions, produces the hydraulic pressure of 6bar the hydraulic pressure at 2000RPM place generation 16bar, as shown in Figure 4 at 1000RPM place.In addition, as shown in Figure 5, under high temperature condition, it is controlled in the hydraulic pressure that 1500RPM place produces the hydraulic pressure of 6bar and produces 16bar at 2500RPM place.
In addition, controller for shifting 21 utilizes the hydraulic detector 13 of the predetermined position in high-pressure channel 120 to detect the line pressure (S109) producing at high-pressure section 108 places, and then based on line pressure control septum valve 122(S110), and control the rotational speed of pump motor 31, to can be maintained at the optimum state (S111) at the pressure of high-voltage section office simultaneously.
Only describe above and controlled the operation for the pressure of high-pressure section.Control at the pressure of low voltage section office is carried out in similar or identical mode by operation low pressure modulating valve, and therefore concrete description is not provided.
According to each embodiment of the present invention, be connected in the fuel supply system of automatic transmission of the structure of a pump motor axle thering are two oil hydraulic pumps, can be according to the discharge pressure of high-pressure section by the rotational speed control of pump motor in the best condition, make it possible to provide stability and the reliability at low-pressure section and high-voltage section office generation hydraulic pressure.
The aforementioned description to concrete exemplary of the present invention is in order to illustrate and the object of illustration.Limit the present invention is not thought in these descriptions, or the present invention is defined as to disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.Selecting exemplary and being described is in order to explain certain principles of the present invention and practical application thereof, thereby makes others skilled in the art can realize and utilize various exemplary of the present invention and different choice form and modification.Scope of the present invention is intended to be limited by appending claims and equivalents thereof.
Claims (10)
1. for a pump motor control system for automatic transmission, comprising:
Low-pressure hydraulic pump, hydraulic pressure is supplied to the low-pressure section in described automatic transmission by described low-pressure hydraulic pump;
High-pressure hydraulic pump, hydraulic pressure is supplied to the high-pressure section in described automatic transmission by described high-pressure hydraulic pump;
Pump motor, described low-pressure hydraulic pump and described high-pressure hydraulic pump are connected to an axle and driven pump by described pump motor;
Pump motor rotary speed detector, described pump motor rotary speed detector detects the rotational speed of described pump motor; And
Controller for shifting, the operation of automatic transmission described in described controller for shifting control, wherein said controller for shifting:
The rotational speed of controlling described pump motor at P scope or N scope place is with identical with engine speed,
In the time having selected D scope or R scope, produce hydraulic pressure in described high-voltage section office by the rotational speed that improves described pump motor, and
According to the hydraulic pressure producing in described high-voltage section office, carry out stable hydraulic by the rotational speed of controlling described pump motor.
2. the pump motor control system for automatic transmission according to claim 1, further comprises hydrostatic sensor, and described hydrostatic sensor is arranged on the hydraulic pressure that hydraulic line is interior and detection produces in described high-voltage section office of described high-pressure section.
3. the pump motor control system for automatic transmission according to claim 1, wherein said controller for shifting is by using the mapping of setting according to the fuel oil temperature of described automatic transmission and durability to compensate the rotational speed of described pump motor.
4. for a pump motor control system for automatic transmission, comprising:
Pump motor, described pump motor is connected to an axle and driven pump by the low-pressure hydraulic pump of the low-pressure section sap pressure supply in described automatic transmission with to the high-pressure hydraulic pump of the high-pressure section sap pressure supply in described automatic transmission;
Septum valve, described septum valve is controlled at the hydraulic pressure that described high-voltage section office produces;
Low pressure modulating valve, described low pressure modulating valve is controlled at the hydraulic pressure that described low voltage section office produces;
Controller for shifting, pump motor, described septum valve and described low pressure modulating valve described in described controller for shifting control; And
Pressure transducer, described pressure transducer is arranged in the passage of described high-pressure section, and detects the hydraulic pressure producing in described high-voltage section office,
Wherein said controller for shifting, according to the hydraulic pressure in described high-voltage section office being detected by described pressure transducer, makes the hydraulic pressure of described high-pressure section keep stable by controlling the rotational speed of described pump motor.
5. the pump motor control system for automatic transmission according to claim 4, the rotational speed that wherein said controller for shifting is controlled described pump motor at P scope or N scope place is with identical with engine speed.
6. the pump motor control system for automatic transmission according to claim 4, wherein said controller for shifting compensates the rotational speed of described pump motor according to the fuel oil temperature condition of described automatic transmission and durability.
7. the pump motor control system for automatic transmission according to claim 4, wherein said septum valve is controlled by the pilot pressure of solenoid valve and the elastic force of resilient member, and the hydraulic pressure of described septum valve control high-pressure channel.
8. the pump motor control system for automatic transmission according to claim 4, wherein said low pressure modulating valve basis is applied in the elastic force of resilient member and the hydraulic pressure of low-pressure channel at the opposite side place of described low pressure modulating valve, controls the hydraulic pressure of low-pressure channel by recirculation hydraulic pressure.
9. for a pump motor controlling method for automatic transmission, described automatic transmission has low-pressure hydraulic pump and the high-pressure hydraulic pump on an axle of pump motor, and described method comprises:
The information of the shift range that detection comprises engine speed, selected by shift level, the rotational speed of pump motor and the hydraulic pressure under high-pressure section;
In the time that motor is opened and selects P scope or N scope by described shift level, control the rotational speed of described pump motor with identical with engine speed;
In the time that described shift level moves to D scope or R scope, in described high-pressure section, produce the hydraulic pressure for actuating friction element by the rotational speed that improves described pump motor; And
According to the hydraulic pressure in described high-pressure section, make to keep stable at the hydraulic pressure of described high-voltage section office by controlling the rotational speed of described pump motor.
10. the pump motor controlling method for automatic transmission according to claim 9, the rotational speed that wherein produces the described pump motor of line pressure in described high-voltage section office is repaired according to fuel oil temperature condition and the durability of described automatic transmission.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2013-0035363 | 2013-04-01 | ||
| KR20130035363A KR101510331B1 (en) | 2013-04-01 | 2013-04-01 | Pump motor control system for automatic transmission and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104100709A true CN104100709A (en) | 2014-10-15 |
| CN104100709B CN104100709B (en) | 2018-01-23 |
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ID=51519690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310695833.XA Expired - Fee Related CN104100709B (en) | 2013-04-01 | 2013-12-17 | Pump motor control system and its method for automatic transmission |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20140294599A1 (en) |
| KR (1) | KR101510331B1 (en) |
| CN (1) | CN104100709B (en) |
| DE (1) | DE102013113910A1 (en) |
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| CN107487316A (en) * | 2016-06-09 | 2017-12-19 | 现代自动车株式会社 | Vehicle shift control method |
| CN109328276A (en) * | 2016-07-12 | 2019-02-12 | 标致雪铁龙汽车股份有限公司 | The hydraulic control equipment of the accumulator of the actuator of the speed changer of the mixed drive chain of vehicle |
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| KR101461922B1 (en) * | 2013-12-18 | 2014-11-14 | 현대자동차 주식회사 | Oil pressure supply system of automatic transmission |
| JP6706884B2 (en) * | 2015-03-19 | 2020-06-10 | 日産自動車株式会社 | Vehicle oil pump drive controller |
| JP6410648B2 (en) * | 2015-03-26 | 2018-10-24 | ジヤトコ株式会社 | Hydraulic control device for vehicle |
| US11421673B2 (en) | 2016-09-02 | 2022-08-23 | Halliburton Energy Services, Inc. | Hybrid drive systems for well stimulation operations |
| JP7153628B2 (en) * | 2019-11-12 | 2022-10-14 | 本田技研工業株式会社 | hydraulic controller |
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- 2013-04-01 KR KR20130035363A patent/KR101510331B1/en active IP Right Grant
- 2013-12-05 US US14/098,524 patent/US20140294599A1/en not_active Abandoned
- 2013-12-12 DE DE102013113910.8A patent/DE102013113910A1/en not_active Ceased
- 2013-12-17 CN CN201310695833.XA patent/CN104100709B/en not_active Expired - Fee Related
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| CN107487316A (en) * | 2016-06-09 | 2017-12-19 | 现代自动车株式会社 | Vehicle shift control method |
| CN109328276A (en) * | 2016-07-12 | 2019-02-12 | 标致雪铁龙汽车股份有限公司 | The hydraulic control equipment of the accumulator of the actuator of the speed changer of the mixed drive chain of vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104100709B (en) | 2018-01-23 |
| KR20140119549A (en) | 2014-10-10 |
| DE102013113910A1 (en) | 2014-10-02 |
| US20140294599A1 (en) | 2014-10-02 |
| KR101510331B1 (en) | 2015-04-07 |
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